Iga Swiatek will play Coco Gauff in the China Open women's semifinals, after the world's second and third-ranked players both won in Beijing on Friday.
World No 2 Swiatek came from a set behind to defeat Caroline Garcia 6-7 (8/10), 7-6 (7/5), 6-1 in a match that hinged on two nail-biting tie-breaks.
Gauff, the US Open champion, comfortably disposed of world No 6 Maria Sakkari 6-2, 6-4.
Swiatek endured a tense opening set that Garcia – ranked 10th – eventually stole with a vicious passing shot at the end of a marathon tie-break.
The Pole was 4-1 up in set two but threatened a match-ending collapse against a stubborn Garcia, finally edging it when the Frenchwoman netted a limp backhand.
From there, Swiatek took control, notching a double break in the deciding set and finally taking match point at the fifth time of asking.
"For sure, it was really intense. We played really fast," the four-time Grand Slam winner told a post-match news conference.
"There was no time sometimes to think or analyse. I'm happy I used my intuition a lot," she said.
"I just knew that she was risking, so... her mistakes could come."
Gauff sailed through a rapid first set and made short work of her opponent in a dominant second, breaking serve in the fifth game.
She took the match by thundering down a meaty serve that Sakkari could only return wide.
In Friday's other quarterfinals, world No 1 Aryna Sabalenka will play fifth-ranked Elena Rybakina, while 17th-ranked Jelena Ostapenko faces Liudmila Samsonova of Russia.
The China Open is taking place for the first time since 2019 after Beijing ended strict zero-Covid travel curbs.
The men's competition concluded on Wednesday, when Italy's Jannik Sinner beat world No 3 Daniil Medvedev in the final.
